CN212758000U - Triphenylphosphine workshop exhaust treatment device - Google Patents
Triphenylphosphine workshop exhaust treatment device Download PDFInfo
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- CN212758000U CN212758000U CN202021212933.4U CN202021212933U CN212758000U CN 212758000 U CN212758000 U CN 212758000U CN 202021212933 U CN202021212933 U CN 202021212933U CN 212758000 U CN212758000 U CN 212758000U
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Abstract
A triphenylphosphine workshop waste gas treatment device belongs to the technical field of triphenylphosphine production, solves the problem of how to treat a large amount of volatile organic industrial waste gas discharged from a triphenylphosphine production workshop, and comprises an alkaline washing tower, a water washing tower, a filter, a first adsorption bed, a second adsorption bed, an adsorption fan and a chimney; the system comprises an alkaline washing tower, a water washing tower and a filter, wherein the alkaline washing tower, the water washing tower and the filter are sequentially connected in series through a pipeline, after the first adsorption bed and the second adsorption bed are connected in parallel, one end of the first adsorption bed is connected with the output end of the filter through the pipeline, the other end of the first adsorption bed is connected with an adsorption fan through the pipeline, and the output end of the adsorption fan is connected; the structure science of device is simple, accords with the requirement that the environmental protection was discharged completely after the processing of alkali wash tower, water scrubber, filter and adsorption bed in the organic waste gas in triphenylphosphine workshop, can not cause the pollution to the air, and the organic waste gas that can handle is of many kinds, and whether organic solvent dissolves with the water phase, all can obtain the recovery.
Description
Technical Field
The utility model belongs to the technical field of the triphenylphosphine production, concretely relates to triphenylphosphine workshop exhaust treatment device.
Background
Triphenylphosphine, which is a basic raw material of rhodium phosphine complex catalyst, has wide application in domestic petrochemical industry, and is also applied in the fields of pharmaceutical industry, organic synthesis, analysis and the like. Triphenylphosphine can also be used as a brightener of dye technology, an antioxidant for high-molecular polymerization and color film development, a stabilizer for poly-epoxidation, an analytical reagent and the like, and is an important raw material in the industries of medicine, petrifaction, coating, rubber and the like.
The production workshop of triphenylphosphine comprises a large amount of flammable and explosive corrosive raw materials, which mainly comprise toluene, methanol, tetrahydrofuran, chlorobenzene, bromoethane, bromobutane, N-butanol, boric acid, N-dimethylformamide, 1, 4-dibromobutane, anhydrous dipotassium hydrogen phosphate, anhydrous sodium acetate, liquid alkali, dichloromethane and the like, so that the waste gas discharged from the production workshop of triphenylphosphine contains a large amount of industrial waste gas of volatile organic substances, and the volatile organic waste gas pollutes the environment, is one of important reasons for haze formation, is not only harmful to the health of people, but also seriously wastes resources.
Therefore, how to treat a large amount of industrial waste gas of volatile organic substances in a triphenylphosphine production workshop to prevent environmental pollution becomes an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is how to treat a large amount of volatile organic industrial waste gas discharged from a triphenylphosphine production workshop.
The utility model discloses a solve above-mentioned technical problem through following technical scheme.
A triphenylphosphine workshop waste gas treatment device comprises an alkaline washing tower (1), a water washing tower (2), a filter (3), a first adsorption bed (4), a second adsorption bed (5), an adsorption fan (6) and a chimney (7); the device comprises an alkaline washing tower (1), a water washing tower (2) and a filter (3), wherein the alkaline washing tower, the water washing tower and the filter (3) are sequentially connected in series through pipelines, after being connected in parallel, a first adsorption bed (4) and a second adsorption bed (5), one end of the first adsorption bed is connected with the output end of the filter (3) through the pipeline, the other end of the first adsorption bed is connected with an adsorption fan (6) through the pipeline, and the output end of the adsorption fan (6) is connected with a chimney.
Triphenylphosphine workshop exhaust treatment device's structure science is simple, accords with the requirement that the environmental protection was discharged completely after the processing of alkali wash tower, scrubbing tower, filter and adsorption bed in the organic waste gas in triphenylphosphine workshop, can not cause the pollution to the air, and the organic waste gas's that can handle many kinds, whether organic solvent dissolves with the water phase, can all obtain the recovery.
As a further improvement of the technical proposal of the utility model, the waste gas treatment device also comprises a first adsorption bed adsorption input control valve (31), a second adsorption bed adsorption input control valve (32), a first adsorption bed adsorption output control valve (33) and a second adsorption bed adsorption output control valve (34); the adsorption input end of the first adsorption bed (4) is provided with a first adsorption bed adsorption input control valve (31), and the adsorption output end of the first adsorption bed (4) is provided with a first adsorption bed adsorption output control valve (33); and the adsorption input end of the second adsorption bed (5) is provided with a second adsorption bed adsorption input control valve (32), and the adsorption output end of the second adsorption bed (5) is provided with a second adsorption bed adsorption output control valve (34).
As a further improvement of the technical proposal of the utility model, the waste gas treatment device also comprises a heat exchanger (8), a steam heater (9), a condenser (10), a nitrogen gas inlet valve (11), a waste liquid tank (13), a first adsorption bed desorption input control valve (41), a second adsorption bed desorption input control valve (42), a first adsorption bed desorption output control valve (43) and a second adsorption bed desorption output control valve (44); the output end of the nitrogen gas inlet valve (11) is connected with the second input end of the heat exchanger (8) through a pipeline, the second output end of the heat exchanger (8) is connected with the first input end of the steam heater (9) through a pipeline, and the first output end of the steam heater (9) is respectively connected with the desorption input ends of the first adsorption bed (4) and the second adsorption bed (5) through a first adsorption bed desorption input control valve (41) and a second adsorption bed desorption input control valve (42); the second input end and the second output end of the steam heater (9) are connected with a high-temperature steam pipeline; the desorption output ends of the first adsorption bed (4) and the second adsorption bed (5) are respectively connected with the first input end of the heat exchanger (8) through a first adsorption bed desorption output control valve (43) and a second adsorption bed desorption output control valve (44); a second input end and a second output end of the condenser (10) are connected with a cold water pipeline; the first output end of the heat exchanger (8) is connected with the first input end of the condenser (10), and the first output end of the condenser (10) is connected with the input end of the waste liquid tank (13).
As the utility model discloses technical scheme's further improvement, waste liquid jar (13) include waste liquid discharge control flap (61), waste liquid discharge control flap (61) set up in waste liquid jar's (13) lower part, adopt screw thread or welding and waste liquid jar (13) sealing connection.
As the utility model discloses technical scheme's further improvement, exhaust treatment device still include desorption fan (12), desorption fan (12) the input set up in the upper portion of waste liquid jar (13), adopt screw thread or welding and waste liquid jar (13) sealing connection, desorption fan (12) the output connect between the second input of heat exchanger (8) and the output of nitrogen gas inlet valve (11).
As the further improvement of the technical proposal of the utility model, the pressure of the nitrogen input by the nitrogen inlet valve (11) is not less than 0.2 MPa.
As a further improvement of the technical proposal of the utility model, the model of the desorption fan (12) is: the centrifugal ventilator should be model 4-72C.
As a further improvement of the technical proposal of the utility model, the power of the steam heater (9) is not less than 12 kW.
As the further improvement of the technical proposal of the utility model, the model of the condenser (10) is: deweger OR/SL series condenser.
As the further improvement of the technical proposal of the utility model, the model of the heat exchanger (8) is: pascal 2000T type heat exchanger.
The utility model has the advantages that:
1) triphenylphosphine workshop exhaust treatment device's structure science is simple, accords with the requirement that the environmental protection was discharged completely after the processing of alkali wash tower, scrubbing tower, filter and adsorption bed in the organic waste gas in triphenylphosphine workshop, and the organic waste gas's that can handle kind is many, absorbs tail gas, can not cause the pollution to the air.
2) The desorbed organic solvent enters a waste liquid tank, and the solvent can be recovered for further purification treatment and recycling, so that the cost is saved.
3) The desorption fan adopts a Xinhui 4-72C type centrifugal fan which has the advantages of stable operation, strong air suction, energy saving, high efficiency and strong corrosion resistance.
4) The condenser adopts Deweor/SL series condenser, and the condenser of the type has good heat transfer pipe, wide heat transfer area, no oil leakage, stability, reliability and simple assembly.
5) The heat exchanger adopts a Pascal 2000T-shaped heat exchanger, and the heat exchanger of the type has the advantages of high heat transfer coefficient, compact structure, strong adjustability and reliable and stable operation.
Drawings
FIG. 1 is a structural composition diagram of an exhaust treatment device for a triphenylphosphine plant.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further described below with reference to the drawings and specific embodiments of the specification:
example one
As shown in fig. 1, the triphenylphosphine plant waste gas treatment device comprises an alkaline washing tower 1, a water washing tower 2, a filter 3, a first adsorption bed 4, a second adsorption bed 5, an adsorption fan 6 and a chimney 7; the system comprises a heat exchanger 8, a steam heater 9, a condenser 10, a nitrogen inlet valve 11, a desorption fan 12 and a waste liquid tank 13; a first adsorption bed adsorption input control valve 31, a second adsorption bed adsorption input control valve 32, a first adsorption bed adsorption output control valve 33, a second adsorption bed adsorption output control valve 34; a first adsorption bed desorption input control valve 41, a second adsorption bed desorption input control valve 42, a first adsorption bed desorption output control valve 43, and a second adsorption bed desorption output control valve 44; the waste liquid is discharged out of the control valve 61.
The alkaline washing tower 1, the water washing tower 2 and the filter 3 are sequentially connected in series through a pipeline, one end of the first adsorption bed 4 and the second adsorption bed 5 are connected in parallel, then the other end of the first adsorption bed is connected with the output end of the filter 3 through the pipeline, the other end of the first adsorption bed is connected with the adsorption fan 6 through the pipeline, and the output end of the adsorption fan 6 is connected with the chimney 7 through the pipeline.
An adsorption input end (desorption output end) of the first adsorption bed 4 is provided with a first adsorption bed adsorption input control valve 31, and an adsorption output end (desorption output end) of the first adsorption bed 4 is provided with a first adsorption bed adsorption output control valve 33; the adsorption input end (desorption output end) of the second adsorption bed 5 is provided with a second adsorption bed adsorption input control valve 32, and the adsorption output end (desorption output end) of the second adsorption bed 5 is provided with a second adsorption bed adsorption output control valve 34.
The output end of the nitrogen gas inlet valve 11 is connected with the second input end of the heat exchanger 8 through a pipeline, the second output end of the heat exchanger 8 is connected with the first input end of the steam heater 9 through a pipeline, and the first output end of the steam heater 9 is respectively connected with the desorption input ends (adsorption output ends) of the first adsorption bed 4 and the second adsorption bed 5 through a first adsorption bed desorption input control valve 41 and a second adsorption bed desorption input control valve 42; the second input end and the second output end of the steam heater 9 are connected with a high-temperature steam pipeline for the inlet and outlet of high-temperature steam.
The desorption output ends (adsorption input ends) of the first adsorption bed 4 and the second adsorption bed 5 are respectively connected with the first input end of the heat exchanger 8 through a first adsorption bed desorption output control valve 43 and a second adsorption bed desorption output control valve 44.
A first output end of the heat exchanger 8 is connected with a first input end of a condenser 10, a first output end of the condenser 10 is connected with an input end of a waste liquid tank 13, an upper output end of the waste liquid tank is connected with a desorption fan 12, and a lower output end of the waste liquid tank is connected with a waste liquid discharge control valve 61 and used for discharging waste liquid; the output end of the desorption fan 12 is connected between the second input end of the heat exchanger 8 and the output end of the nitrogen inlet valve 11; the second input and the second output of the condenser 10 are fed with cold water.
The types of the desorption fan 12 are as follows: the centrifugal fan of model 4-72C has the advantages of stable operation, strong air suction, energy saving, high efficiency and strong corrosion resistance.
The type of the condenser 10 is as follows: the Deweor/SL series condenser has excellent heat transfer pipe, wide heat transfer area, no oil leakage, high stability and reliability and simple assembly.
The type of the heat exchanger 8 is as follows: the Pascal 2000T-type heat exchanger has the advantages of high heat transfer coefficient, compact structure, strong adjustability and reliable and stable operation.
1) Adsorption process
Opening a first adsorption bed adsorption input control valve 31, a first adsorption bed adsorption output control valve 33, a second adsorption bed adsorption input control valve 32 and a second adsorption bed adsorption output control valve 34, enabling organic waste gas to be treated to enter a first adsorption bed 4 and a second adsorption bed 5 after passing through an alkaline tower 1, a water washing tower 2 and a filter 3, enabling the organic waste gas to be adsorbed by the first adsorption bed 4 and the second adsorption bed 5, and enabling the purified gas to be sent to a chimney 7 through an adsorption fan 6 and then to be discharged to the air.
The alkaline washing tower 1 is used for carrying out countercurrent contact on a small amount of industrial gases such as sulfide, carbon dioxide and the like contained in organic waste gas in a triphenylphosphine plant and dilute alkali liquor to remove polluted gases such as hydrogen sulfide, carbon dioxide and the like; the water washing tower 2 is used for removing alcohols, oxygenated hydrocarbons and other water-soluble volatile gases contained in organic waste gas of a triphenylphosphine plant; the filter 3 is used for adsorbing larger particulate matters contained in the organic waste gas of the triphenylphosphine plant; the organic waste gas in the triphenylphosphine workshop is treated by an alkaline washing tower, a water washing tower, a filter and an adsorption bed, so that the requirements of environmental protection and emission are completely met, and the air is not polluted.
2) Desorption process
0.2MPa nitrogen enters a heat exchanger 8 through a nitrogen inlet valve 11, high-pressure nitrogen is more beneficial to desorption of organic substances, the heat exchanger 8 preheats the nitrogen and inputs the preheated nitrogen into a steam heater 9, the steam heater 9 inputs high-temperature steam to further heat the nitrogen, hot nitrogen is respectively input into a first adsorption bed 4 and a second adsorption bed 5 through a first adsorption bed desorption input control valve 41 and a second adsorption bed desorption input control valve 42 to desorb adsorbents on the first adsorption bed 4 and the second adsorption bed 5, mixed gas rich in organic substances obtained by desorption is respectively input into the heat exchanger 8 through a first adsorption bed desorption output control valve 43 and a second adsorption bed desorption output control valve 44 to be cooled, the cooled mixed gas is input into a condenser 10 again, the organic substances are rapidly condensed through the action of cold water and are changed from a gaseous state to a liquid state, discharging the waste liquid into a waste liquid tank, and recycling the waste liquid through a waste liquid discharge control valve 61; meanwhile, the cooled nitrogen also enters the waste liquid tank, and the desorption fan 12 is started to send the nitrogen in the waste liquid tank into the heat exchanger 8 for cyclic utilization.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The triphenylphosphine workshop waste gas treatment device is characterized by comprising an alkaline washing tower (1), a water washing tower (2), a filter (3), a first adsorption bed (4), a second adsorption bed (5), an adsorption fan (6) and a chimney (7); the device comprises an alkaline washing tower (1), a water washing tower (2) and a filter (3), wherein the alkaline washing tower, the water washing tower and the filter (3) are sequentially connected in series through pipelines, after being connected in parallel, a first adsorption bed (4) and a second adsorption bed (5), one end of the first adsorption bed is connected with the output end of the filter (3) through the pipeline, the other end of the first adsorption bed is connected with an adsorption fan (6) through the pipeline, and the output end of the adsorption fan (6) is connected with a chimney.
2. A triphenylphosphine plant exhaust gas treatment device according to claim 1, wherein said exhaust gas treatment device further comprises a first adsorption bed adsorption input control valve (31), a second adsorption bed adsorption input control valve (32), a first adsorption bed adsorption output control valve (33), a second adsorption bed adsorption output control valve (34); the adsorption input end of the first adsorption bed (4) is provided with a first adsorption bed adsorption input control valve (31), and the adsorption output end of the first adsorption bed (4) is provided with a first adsorption bed adsorption output control valve (33); and the adsorption input end of the second adsorption bed (5) is provided with a second adsorption bed adsorption input control valve (32), and the adsorption output end of the second adsorption bed (5) is provided with a second adsorption bed adsorption output control valve (34).
3. The triphenylphosphine plant waste gas treatment device according to claim 1, wherein the waste gas treatment device further comprises a heat exchanger (8), a steam heater (9), a condenser (10), a nitrogen gas inlet valve (11), a waste liquid tank (13), a first adsorption bed desorption input control valve (41), a second adsorption bed desorption input control valve (42), a first adsorption bed desorption output control valve (43), a second adsorption bed desorption output control valve (44); the output end of the nitrogen gas inlet valve (11) is connected with the second input end of the heat exchanger (8) through a pipeline, the second output end of the heat exchanger (8) is connected with the first input end of the steam heater (9) through a pipeline, and the first output end of the steam heater (9) is respectively connected with the desorption input ends of the first adsorption bed (4) and the second adsorption bed (5) through a first adsorption bed desorption input control valve (41) and a second adsorption bed desorption input control valve (42); the second input end and the second output end of the steam heater (9) are connected with a high-temperature steam pipeline; the desorption output ends of the first adsorption bed (4) and the second adsorption bed (5) are respectively connected with the first input end of the heat exchanger (8) through a first adsorption bed desorption output control valve (43) and a second adsorption bed desorption output control valve (44); a second input end and a second output end of the condenser (10) are connected with a cold water pipeline; the first output end of the heat exchanger (8) is connected with the first input end of the condenser (10), and the first output end of the condenser (10) is connected with the input end of the waste liquid tank (13).
4. A triphenylphosphine plant waste gas treatment device according to claim 3, wherein the waste liquid tank (13) comprises a waste liquid discharge control valve (61), the waste liquid discharge control valve (61) is arranged at the lower part of the waste liquid tank (13) and is connected with the waste liquid tank (13) in a sealing way by screw threads or welding.
5. The triphenylphosphine plant waste gas treatment device according to claim 3, wherein the waste gas treatment device further comprises a desorption fan (12), an input end of the desorption fan (12) is arranged at the upper part of the waste liquid tank (13) and is hermetically connected with the waste liquid tank (13) by adopting threads or welding, and an output end of the desorption fan (12) is connected between the second input end of the heat exchanger (8) and the output end of the nitrogen inlet valve (11).
6. A triphenylphosphine plant exhaust gas treatment device according to claim 3, wherein the pressure of the nitrogen input from the nitrogen input valve (11) is not less than 0.2 MPa.
7. A triphenylphosphine plant exhaust gas treatment device according to claim 5, wherein the type of the desorption fan (12) is: the centrifugal ventilator should be model 4-72C.
8. A triphenylphosphine plant exhaust gas treatment device according to claim 3, wherein the steam heater (9) has a power of not less than 12 kW.
9. A triphenylphosphine plant exhaust gas treatment device according to claim 3, characterized in that the condenser (10) is of the type: deweger OR/SL series condenser.
10. A triphenylphosphine plant exhaust gas treatment device according to claim 3, characterized in that the heat exchanger (8) is of the type: pascal 2000T type heat exchanger.
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| CN202021212933.4U CN212758000U (en) | 2020-06-28 | 2020-06-28 | Triphenylphosphine workshop exhaust treatment device |
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| CN202021212933.4U CN212758000U (en) | 2020-06-28 | 2020-06-28 | Triphenylphosphine workshop exhaust treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083000A (en) * | 2021-04-12 | 2021-07-09 | 广东省农业科学院作物研究所 | Carbon dioxide waste gas recovery processing device beneficial to environmental protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083000A (en) * | 2021-04-12 | 2021-07-09 | 广东省农业科学院作物研究所 | Carbon dioxide waste gas recovery processing device beneficial to environmental protection |
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